661
FNCA52 TJSJ 240745
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
345 AM AST WED DEC 24 2025
DISCUSSION
LIKE PREVIOUS DAYS, FREQUENT PASSING SHOWERS OVER WINDWARD AREAS
WILL PREVAIL TODAY, WITH MODERATE TO FRESH WINDS PUSHING THEM MORE
INLAND. ADDITIONAL SHOWERS ARE ALSO POSSIBLE THIS AFTERNOON OVER
INTERIOR TO WSW PUERTO RICO. NE WINDS WILL BE AT 15 TO 20 MPH WITH
HIGHER GUSTS ACROSS COASTAL SECTORS. THE FIRE DANGER WILL REMAIN
LOW TODAY. CONTINUE TO MONITOR THE FORECAST FOR ANY UPDATES.
PRZ014-250745-
SOUTHEAST COASTAL PLAINS-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 10
TEMP (24H TREND) 87 (+1) 66 (-3) 86
RH % (24H TREND) 48 (-6) 97 (+1) 39
WIND 20FT/EARLY(MPH) NE 16 G20 NE 12 NE 16 G22
WIND 20FT/LATE(MPH) NE 16 G20 NE 12 NE 16 G22
MIXING HGT(FT-AGL/MSL)6130 5860
TRANSPORT WND (MPH) NE 14 N 16
VENT RATE (KT-FT) 73560 82040
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-250745-
SOUTHERN HILLS-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20
TEMP (24H TREND) 83 (+2) 63 (-4) 82
RH % (24H TREND) 63 (-4) 100 (+3) 57
WIND 20FT/EARLY(MPH) NE 12 NE 10 NE 13
WIND 20FT/LATE(MPH) NE 12 NE 10 NE 13
MIXING HGT(FT-AGL/MSL)5620 5840
TRANSPORT WND (MPH) NE 14 N 16
VENT RATE (KT-FT) 67440 81760
DISPERSION 5 5
DSI 5 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-250745-
NORTH COASTAL PLAINS-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 40
TEMP (24H TREND) 84 (0) 67 (-2) 83
RH % (24H TREND) 65 (-4) 100 (+1) 60
WIND 20FT/EARLY(MPH) NE 16 G18 NE 16 NE 17
WIND 20FT/LATE(MPH) NE 16 G18 NE 16 NE 17
MIXING HGT(FT-AGL/MSL)4490 5350
TRANSPORT WND (MPH) NE 16 N 17
VENT RATE (KT-FT) 62860 80250
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-250745-
NORTHERN HILLS-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 30
TEMP (24H TREND) 84 (+1) 65 (-2) 83
RH % (24H TREND) 66 (-2) 100 (0) 61
WIND 20FT/EARLY(MPH) NE 14 NE 14 NE 16
WIND 20FT/LATE(MPH) NE 14 NE 14 NE 16
MIXING HGT(FT-AGL/MSL)4800 5270
TRANSPORT WND (MPH) NE 16 NE 17
VENT RATE (KT-FT) 67200 79050
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-250745-
WEST COAST-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 40
TEMP (24H TREND) 87 (+1) 65 (-2) 86
RH % (24H TREND) 61 (-3) 100 (+1) 56
WIND 20FT/EARLY(MPH) NE 18 NE 18 NE 18
WIND 20FT/LATE(MPH) NE 18 NE 18 NE 18
MIXING HGT(FT-AGL/MSL)4690 5810
TRANSPORT WND (MPH) NE 13 NE 18
VENT RATE (KT-FT) 51590 92960
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-250745-
EASTERN INTERIOR-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 40
TEMP (24H TREND) 83 (+2) 65 (-2) 82
RH % (24H TREND) 68 (-3) 100 (0) 63
WIND 20FT/EARLY(MPH) NE 12 NE 12 NE 13
WIND 20FT/LATE(MPH) NE 12 NE 12 NE 13
MIXING HGT(FT-AGL/MSL)4710 5200
TRANSPORT WND (MPH) NE 14 N 17
VENT RATE (KT-FT) 56520 78000
DISPERSION 5 5
DSI 5 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-250745-
LUQUILLO MOUNTAIN RANGE-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 50
TEMP (24H TREND) 78 (+1) 62 (-4) 77
RH % (24H TREND) 72 (-3) 100 (0) 64
WIND 20FT/EARLY(MPH) NE 10 NE 9 NE 11
WIND 20FT/LATE(MPH) NE 10 NE 9 NE 11
MIXING HGT(FT-AGL/MSL)3950 5000
TRANSPORT WND (MPH) NE 14 N 15
VENT RATE (KT-FT) 47400 65000
DISPERSION 5 5
DSI 5 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-250745-
CENTRAL MOUNTAIN RANGE-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20
TEMP (24H TREND) 81 (+2) 61 (-5) 81
RH % (24H TREND) 65 (-5) 100 (+2) 60
WIND 20FT/EARLY(MPH) NE 16 NE 16 NE 16
WIND 20FT/LATE(MPH) NE 16 NE 16 NE 16
MIXING HGT(FT-AGL/MSL)5290 5450
TRANSPORT WND (MPH) NE 15 NE 18
VENT RATE (KT-FT) 68770 87200
DISPERSION 5 5
DSI 5 4 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-250745-
CAYEY MOUNTAIN RANGE-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 30
TEMP (24H TREND) 78 (0) 63 (-3) 77
RH % (24H TREND) 71 (-2) 100 (0) 65
WIND 20FT/EARLY(MPH) NE 11 N 9 NE 12
WIND 20FT/LATE(MPH) NE 11 N 9 NE 12
MIXING HGT(FT-AGL/MSL)4830 5060
TRANSPORT WND (MPH) NE 15 N 18
VENT RATE (KT-FT) 62790 80960
DISPERSION 5 5
DSI 5 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-250745-
VIEQUES-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 50
TEMP (24H TREND) 85 (0) 69 (-2) 85
RH % (24H TREND) 61 (-1) 99 (0) 55
WIND 20FT/EARLY(MPH) NE 13 G17 NE 14 G19 NE 17 G21
WIND 20FT/LATE(MPH) NE 13 G17 NE 14 G19 NE 17 G21
MIXING HGT(FT-AGL/MSL)3710 4600
TRANSPORT WND (MPH) NE 21 N 20
VENT RATE (KT-FT) 66780 78200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-250745-
CULEBRA-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 50
TEMP (24H TREND) 85 (0) 69 (-3) 85
RH % (24H TREND) 61 (-3) 100 (+2) 55
WIND 20FT/EARLY(MPH) NE 13 G17 NE 14 G19 NE 17 G21
WIND 20FT/LATE(MPH) NE 13 G17 NE 14 G19 NE 17 G21
MIXING HGT(FT-AGL/MSL)3720 4620
TRANSPORT WND (MPH) NE 21 N 18
VENT RATE (KT-FT) 66960 73920
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-250745-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 50
TEMP (24H TREND) 88 (+1) 66 (-2) 86
RH % (24H TREND) 48 (-4) 99 (+4) 39
WIND 20FT/EARLY(MPH) E 20 G23 NE 19 G23 NE 20 G25
WIND 20FT/LATE(MPH) E 20 G23 NE 19 G23 NE 20 G25
MIXING HGT(FT-AGL/MSL)5640 6520
TRANSPORT WND (MPH) E 9 N 14
VENT RATE (KT-FT) 45120 78240
DISPERSION 5 5
DSI 5 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-250745-
SAINT THOMAS AND SAINT JOHN-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 60 50
TEMP (24H TREND) 86 (+1) 68 (-4) 86
RH % (24H TREND) 60 (-4) 100 (+1) 55
WIND 20FT/EARLY(MPH) NE 13 G17 NE 14 G18 NE 17 G20
WIND 20FT/LATE(MPH) NE 13 G17 NE 14 G18 NE 17 G20
MIXING HGT(FT-AGL/MSL)3700 4530
TRANSPORT WND (MPH) NE 18 NE 21
VENT RATE (KT-FT) 59200 81540
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-250745-
ST CROIX-
345 AM AST WED DEC 24 2025
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 50
TEMP (24H TREND) 85 (0) 70 (-2) 85
RH % (24H TREND) 61 (-4) 99 (+2) 58
WIND 20FT/EARLY(MPH) NE 14 G18 NE 12 NE 16 G20
WIND 20FT/LATE(MPH) NE 14 G18 NE 12 NE 16 G20
MIXING HGT(FT-AGL/MSL)4310 4650
TRANSPORT WND (MPH) NE 17 N 20
VENT RATE (KT-FT) 64650 79050
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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